/usr/lib/pd/extra/zexy/ChangeLog is in pd-zexy 2.2.5-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | zexy (2.2.5) RELEASED; urgency=low
  * switched to autotools
  * generate ChangeLog with "dch -c ChangeLog"
 -- IOhannes m zmoelnig (gpg-key at iem) <zmoelnig@iem.at>  Thu, 29 Sep 2011 14:19:18 +0200
zexy (2.2.4) RELEASED; urgency=low
  * disable SIMD code by default (prevent crashes)
  * [msgfile] does not crash with [add2( on an emtpy buffer
  * [pack]/[unpack] now accept all messages (like their vanilla counterparts)
  * [limiter~] on-the-fly oversampling parameters (higher precision)
  * all code is now UTF-8
 -- IOhannes m zmoelnig (gpg-key at iem) <zmoelnig@iem.at>  Wed, 26 Sep 2011 21:20:20 +0200
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